Troubleshooting & System Requirements

Help with known issues

• Troubleshooting Checklist
• Is My Browser Supported?
• My page is slow to load or stuck on loading
• How to enable cookies
• I Can't Sign in to CK-12 with My Login Credentials
• Videos Are Not Playing on My Windows Device
• Error Message: "You are reading an older version...Please edit the flexbook to update this concept."